Call Controller of an autoplayed video in ViewController - swift

Question

I have set it up so that when a ViewController is displayed, a video starts automatically and at the end it switches to a different ViewController.
The problem is that if the app is put in the background while viewing it, the video freezes and you have to restart the application.
I thought about setting the classic pause / play controllers to appear when you press the screen so you can continue watching, but I don't know how to do that.
Or do you have another solution to prevent the video from freezing?
import UIKit
import AVKit
import AVFoundation
class View8BaController: UIViewController {
func setupAVPlayer() {
let videoURL = Bundle.main.url(forResource: "8B-A", withExtension: "mp4") // Get video url
let avAssets = AVAsset(url: videoURL!) // Create assets to get duration of video.
let avPlayer = AVPlayer(url: videoURL!) // Create avPlayer instance
let avPlayerLayer = AVPlayerLayer(player: avPlayer) // Create avPlayerLayer instance
avPlayerLayer.frame = self.view.bounds // Set bounds of avPlayerLayer
self.view.layer.addSublayer(avPlayerLayer) // Add avPlayerLayer to view's layer.
avPlayer.play() // Play video
// Add observer for every second to check video completed or not,
// If video play is completed then redirect to desire view controller.
avPlayer.addPeriodicTimeObserver(forInterval: CMTime(seconds: 1, preferredTimescale: 1) , queue: .main) { [weak self] time in
if time == avAssets.duration {
let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SCENA7") as! SCENA7ViewController
self?.navigationController?.pushViewController(vc, animated: false)
}
}
}
//------------------------------------------------------------------------------
override func viewDidLoad() {
super.viewDidLoad()
}
//------------------------------------------------------------------------------
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
self.setupAVPlayer() // Call method to setup AVPlayer & AVPlayerLayer to play video
}
}

Answer 1

have you tried telling the video to play in the sceneDelegate?
add to the class, right above func setupAVPlayer(),
var avPlayer: AvPlayer!
then in your sceneDelegate outside any functions
let view8Ba = View8BaController()
to create an instance of the view controller. Then you can access the properties in the following:
func sceneWillEnterForeground(_ scene: UIScene) {
if view8Ba.viewIfLoaded?.window != nil {
view8Ba.avPlayer.play()
}
}
This will tell your video to start playing again when the app comes back from the background.
If you want to add a play/pause when you tap the screen you can add a tap gesture recognizer and another view to the current view controller and set the background to clear (in storyboard drag the new view to the white bar on top of the view controller)
then call
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
pauseScreenView.frame = View8BaController.bounds
}
This tells the new view you added where to be on the viewController.
In the IBAction of the tap gesture recognizer
#IBAction func screenTapped(_ sender: Any) {
View8BaController.addSubview(pauseScreenView)
DispatchQueue.main.asyncAfter(deadline: .now() + 10.0) {
self.pauseScreenView.removeFromSuperview()
}
}
This adds the new view to the top of the viewController and then removes it after 10 seconds.
In that new view you can add a button that will play/pause your video
#IBAction func pauseVideo(_ sender: UIButton) {
if avPlayer.timeControlStatus == .playing {
avPlayer.pause()
pauseButton.setImage(playImage, for: .normal)
}else {
avPlayer.play()
pauseButton.setImage(pauseImage, for: .normal)
}
}